| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Valdez-Nava, Zarel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Dielectric Breakdown of Alumina: Effect of Mechanical and Electrical Prestress
- 2024Effect of Cracks on the Dielectric Breakdown of Polymers and Ceramics
- 2024Electrical Characteristics and Surface Topography of Elastomeric Nanocomposites Based on Multi-walled Carbon Nanotubes and Poly(Dimethylsiloxane)
- 2023Tuning electrical conductivity in AlN-based ceramics by incorporating graphenecitations
- 2023Hydrogels with electrically conductive nanomaterials for biomedical applicationscitations
- 2022Dielectrophoretic Chain Assembly of BaTiO3 Particles in Silicone Gel Composites
- 2022Innovative ceramic-matrix composite substrates with tunable electrical conductivity for high-power applicationscitations
- 2022A Comparative Study of the Electrical and Electromechanical Responses of Carbon Nanotube/Polypropylene Composites in Alternating and Direct Currentcitations
- 2020Electro-mechanical properties of thermoplastic polyurethane films and tubes modified by hybrid carbon nanostructures for pressure sensingcitations
- 2015Online Optical and Dielectric Monitoring of Anisotropic Epoxy / BaTiO3 Composite Formation Tailored by Dielectrophoresiscitations
- 2013Co-fired AlN–TiN assembly as a new substrate technology for high-temperature power electronics packagingcitations
- 2011Structural characterization of dense reduced BaTiO3 and Ba0.95La0.05TiO3 nanoceramics showing colossal dielectric valuescitations
- 2011Microstructure of Ba1−xLaxTiO3−δ ceramics sintered by Spark Plasma Sinteringcitations
- 2009Lanthanum doped barium titanate materials with optimized properties for high capacity materials application.
- 2009Lanthanum doped barium titanate materials with optimized properties for high capacity materials application
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article
A Comparative Study of the Electrical and Electromechanical Responses of Carbon Nanotube/Polypropylene Composites in Alternating and Direct Current
Abstract
<jats:p>The electrical and electromechanical responses of ~200 µm thick extruded nanocomposite films comprising of 4 wt.% and 5 wt.% multiwall carbon nanotubes mixed with polypropylene are investigated under an alternating current (AC) and compared to their direct current (DC) response. The AC electrical response to frequency (f) and strain (piezoimpedance) is characterized using two configurations, namely one that promotes resistive dominance (resistive configuration) and the other that promotes the permittivity/capacitive contribution (dielectric configuration). For the resistive configuration, the frequency response indicated a resistive–capacitive (RC) behavior (negative phase angle, θ), with a significant contribution of capacitance for frequencies of 104 Hz and above, depending on the nanotube content. The piezoimpedance characterization in the resistive configuration yielded an increasing impedance modulus (|Z|) and an increasing (negative) value of θ as the strain increased. The piezoimpedance sensitivity at f = 10 kHz was ~30% higher than the corresponding DC piezoresistive sensitivity, yielding a sensitivity factor of 9.9 for |Z| and a higher sensitivity factor (~12.7) for θ. The dielectric configuration enhanced the permittivity contribution to impedance, but it was the least sensitive to strain.</jats:p>